Please help me identify this.

[abiteme84]

Fairly new to saltwater. 10 gallon tank tank 10lbs live rock. Tank is about almost 2 months old. Just recently had bubble algae, cleaned live rock with peroxide. Noticed 4 of these today after doing a water change. Anything I should be worried about?

 

[GHsaltie]

Looks like a feather duster.

 

[Mikedawg]

Fairly new to saltwater. 10 gallon tank tank 10lbs live rock. Tank is about almost 2 months old. Just recently had bubble algae, cleaned live rock with peroxide. Noticed 4 of these today after doing a water change. Anything I should be worried about?

May want to keep this handy as an excellent reference guide for the future: https://www.lionfishlair.com/hitchhikers-guide/

 

[Mikedawg]

Fairly new to saltwater. 10 gallon tank tank 10lbs live rock. Tank is about almost 2 months old. Just recently had bubble algae, cleaned live rock with peroxide. Noticed 4 of these today after doing a water change. Anything I should be worried about?

Does it look like this? https://www.lionfishlair.com/hitchhikers-guide/serpula/

 

[abiteme84]

Does it look like this? https://www.lionfishlair.com/hitchhikers-guide/serpula/

Yea kinda. When I get my coral feeder close to it, it sucks back in.